Computer keyboard



FIG. 1 is an upper right front perspective view of a design for a computer keyboard;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof, wherein the right side is a mirror image thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a rear elevational view thereof. 

We claim the ornamental design for a computer keyboard, as shown and described. 